211035460021 has 4 divisors (see below), whose sum is σ = 211714030944. Its totient is φ = 210356889100.

The previous prime is 211035460007. The next prime is 211035460039. The reversal of 211035460021 is 120064530112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211035460021 - 2⁵ = 211035459989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211035460001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339284995 + ... + 339285616.

It is an arithmetic number, because the mean of its divisors is an integer number (52928507736).

Almost surely, 2^211035460021 is an apocalyptic number.

It is an amenable number.

211035460021 is a deficient number, since it is larger than the sum of its proper divisors (678570923).

211035460021 is an equidigital number, since it uses as much as digits as its factorization.

211035460021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678570922.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 211035460021 its reverse (120064530112), we get a palindrome (331099990133).

The spelling of 211035460021 in words is "two hundred eleven billion, thirty-five million, four hundred sixty thousand, twenty-one".